Priv stv100-3 does not see the security patch update

Long time BB10 user and just bought an unlocked Priv STV100-3 and I'm trying to use it on Bell Canada. I know the STV100-1 is the typical model for Bell, but got a good deal on this unopened box and the LTE bands looked the same.

The phone came out of the box with Marshmallow 6.0.1 on it and sitting at Security Patch July 5, 2016.

I've tried hitting "System Update" under WiFi as well as just with LTE. Says System is up to date.

Is there a way to force the updated 2017 security patch to this phone or an I screwed since Bell is ignoring it since it's a stv100-3??

Thanks for the response. I used the autoloader and everything is now up to date. I'm hoping this was a one time issue and I don't have to do this each month with the updates. Worried that having a stv100-3 instead of -1 on Bell is the root cause?